Birtcher Type 926B Electron Vacuum Tube Valve Retainer - Free Shipping USA manufactured Fits to tubes with diameter 1.25 inch(3.17 cm) like 6V6, 6L6GB(not 6L6GC), 7591, 6SL7, 6SN7, 5Y3 etc. This does not fit to ST tubes such as 6V6G, 80, 5Y3G, etc which have 1.35 inch diameter. Free shipping via airmail that takes 7-14 days to most parts of the world from Korea. Some remote regions may take somewhat longer.
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